Professor Feigenbaum retired from the Stanford Computer Science Department in 2000. His main activities since then have been the Feigenbaum Papers archive project with the Stanford Libraries; member of the Board of Trustees of the Computer History Museum; and consulting for the US Air Force and industry. Feigenbaum is an interdisciplinary computer scientist who pioneered Expert Systems and the knowledge-based approaches to artificial intelligence. He completed his undergraduate degree and Ph.D. at Carnegie Institute of Technology (now Carnegie Mellon University). In his PhD thesis, mentored by Nobel Laureate Herbert Simon, he developed EPAM (Elementary Perceiver and Memorizer), one of the first computer models of human learning.At Stanford, he founded the Heuristic Programming Project and Knowledge Systems Laboratory; directed Stanford's Computation Center; and chaired its Computer Science Department.For his research, he received the 1994 ACM Turing Award, often regarded as the most prestigious award in Computer Science. The citation read: ”For pioneering the design and construction of large scale artificial intelligence systems, demonstrating the practical importance and potential commercial impact of artificial intelligence technology".He has been elected to both the National Academy of Engineering and the American Academy of Arts and Sciences. The biennial Feigenbaum Prize, established in his honor by the International Conference on Expert Systems, is now awarded by the Association for the Advancement of Artificial Intelligence (AAAI).